subrogation vs substitution

subrogation and substitution both are nouns.

Word	Noun	Adjective	Verb	Adverb
subrogation	Yes	No	No	No
substitution	Yes	No	No	No

As nouns, substitution is a hypernym of subrogation; that is, substitution is a word with a broader meaning than subrogation:

subrogation: (law) the act of substituting of one creditor for another
substitution: the act of putting one thing or person in the place of another:

Other hypernyms of subrogation include commutation, exchange.

subrogation (noun)	substitution (noun)
(law) the act of substituting of one creditor for another	the act of putting one thing or person in the place of another:
	an event in which one thing is substituted for another